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去氢退火
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去氢退火
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退火
释
dehydrogenation annealing
去氢退火
为防止中碳和中碳合金钢锻件在热形变加工后的冷却过程中因氢呈气态析出而形成发裂(白点),在其形变加工结束后直接通过低温加热、保温,使钢中原来固溶的氢扩散到材料或工件之外的退火热处理工艺。
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a hypothesis that there are no labiodental in old Chinese
a hypothesis that there are no laminals in old Chinese
a hypothesis that there are voiceless nasal and lateral in old Chinese
a hypothesis that there is no departing tone category in old Chinese
a hypothesis that the yu initial at the fourth division belongs to the ding initial in old Chinese
a hypothesis that the yu initial at the third division belongs to the xia initial in old Chinese
a hypothesis that tonal distinctions are merged in old Chinese verses
A. H. 威尔逊
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Aibi Hu Wetland National Nature Reserve
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AIChE Journal
Aichi Biodiversity Targets
Aichi Prefectural Ceramic Museum
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